This depends on the situation. The main power unit used for electric power output is generally the Watt (W), while the main power unit used for mechanical power output is often the horsepower (hp).
The British unit of power is the WATT.
An astronomical unit (AU) is the average distance of the earth from the sun.
The magnitude of the region which US occupies is 9,826,675 km2.We don't use unit kilometer here because the unit can be used only when we consider length of boundaries, length of roads etc.
Kilometres are the appropriate unit.
they are used in our lives to save us from paying the power bill so we can spend the electricity money on the water bill and food to keep our families healthy
There seem to be three main strands to this: one that conventional energy sources are mainly in unsettled areas of the world and therefore possibly unsure in the future, two that nuclear power does not contribute to global warming, and three that many existing nuclear plants are quite old and will eventually have to be decommissioned, probably due to concerns about pressure vessel integrity, and therefore will need to be replaced by new plants unless more coal is to be used.
to power our homes and give us electricity :)
The metric unit of power is the 'watt', and of course its power-of-ten multiples and submultiples are used where necessary to produce convenient numbers. Probably the closest to the horsepower is the 'kilowatt' = about 1.3405 HP .
horse power
seconds
No, the gram is used for small weights, even though the gram is a mass unit, not a force unit or weight unit.
Europe mainly Spain and France
Fahrenheit
US customary units
mainly on farms in the US
Guess what it is not on this page dummy.
Newtons (symbol N) is the SI unit. Something with 1kg mass weighs 1N. Lbs (pounds) is the English unit used frequently in the US. Stones and Kgs are used as a unit in most of the world.
Kilolitre is kl (or mainly in US, kL), not that it is used much.kl